http://www.csem.duke.edu/Cluster/csh_basics.htm Contents: Introduction Loops If..Then Logical Operators File-test Operators Doing Math Introduction Rather than going into a "how to program" tutorial, we'll simply show a few examples of scripts and what they do, how to modify them, etc. In general, a shell script is a program just like any other and thus may have bugs and "features" that you did ..